<group>
<ul class='breadcrumb'><li><a href='%pathto:mdoc;'>Index</a></li><li><a href='%pathto:plotop.vl_linespec2prop;'>Prev</a></li><li><a href='%pathto:plotop.vl_plotgrid;'>Next</a></li></ul><div class="documentation"><p>
<a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>(FRAME) plots the frames FRAME.  Frames are attributed
image regions (as, for example, extracted by a feature detector). A
frame is a vector of D=2,3,..,6 real numbers, depending on its
class. <a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>() supports the following classes:
</p><pre>
 * POINTS
   + FRAME(1:2)   coordinates

 * CIRCLES
   + FRAME(1:2)   center
   + FRAME(3)     radius

 * ORIENTED CIRCLES
   + FRAME(1:2)   center
   + FRAME(3)     radius
   + FRAME(4)     orientation

 * ELLIPSES
   + FRAME(1:2)   center
   + FRAME(3:5)   S11, S12, S22 such that ELLIPSE = {x: x' inv(S) x = 1}.

 * ORIENTED ELLIPSES
   + FRAME(1:2)   center
   + FRAME(3:6)   stacking of A such that ELLIPSE = {A x : |x| = 1}
</pre><p>
H=<a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>(...) returns the handle of the graphical object
representing the frames.
</p><p>
<a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>(FRAMES) where FRAMES is a matrix whose column are FRAME
vectors plots all frames simultaneously. Using this call is much
faster than calling <a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>() for each frame.
</p><p>
<a href="%pathto:plotop.vl_plotframe;">VL_PLOTFRAME</a>(FRAMES,...) passes any extra argument to the underlying
plot function. The first optional argument can be a line
specification string such as the one used by PLOT().
</p><p>
See also: <a href="%pathto:vl_help;">VL_HELP</a>().
</p></div></group>
